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Derivative Activities - Effects of Cash Flow Hedges and Other Hedges on Accumulated Other Comprehensive Income (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014
Derivative Instruments Gain Loss [Line Items] |  |  |
Realized Gain (Loss) Reclassified from OCI into Revenue | $ 462,632 us-gaap_Revenues | $ 457,342 us-gaap_Revenues |
Reclassification out of Accumulated Other Comprehensive Income |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |
Realized Gain (Loss) Reclassified from OCI into Revenue |  | 1,240 us-gaap_Revenues / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember | [1]
Tax Effect | Reclassification out of Accumulated Other Comprehensive Income |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |
Realized Gain (Loss) Reclassified from OCI into Revenue |  | (924)us-gaap_Revenues / rrc_DerivativeTaxEffectAxis = rrc_TaxEffectMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember | [1]
Swaps | Before Tax | Reclassification out of Accumulated Other Comprehensive Income |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |
Realized Gain (Loss) Reclassified from OCI into Revenue |  | 836 us-gaap_Revenues / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / rrc_DerivativeTaxEffectAxis = rrc_BeforeTaxMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember | [1]
Collars | Before Tax | Reclassification out of Accumulated Other Comprehensive Income |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |
Realized Gain (Loss) Reclassified from OCI into Revenue |  | $ 1,328 us-gaap_Revenues / us-gaap_DerivativeByNatureAxis = rrc_CollarsMember / rrc_DerivativeTaxEffectAxis = rrc_BeforeTaxMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember | [1]
[1] | For realized gains upon derivative contract settlement, the reduction in AOCI is offset by an increase in natural gas, NGLs and oil sales. For realized losses upon derivative contract settlement, the increase in AOCI is offset by a decrease in revenues.

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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